2020 Audi A6 Avant 2.0 TDI S Line

Overview

• Make: Audi
• Model: A6 Avant
• Trim: S Line
• Version: 2.0 TDI S Line S tronic FWD Euro 6 5dr (201 bhp)
• Year: 2020
• Mileage: 59,856 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 152 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A6 Avant S Line has covered 59,856 miles, around 13,600 fewer miles than is typical for its age. Its asking price of £20,074 is £326 below the AskCar estimate of £20,400. The AskCar estimate uses 783 UK dealer adverts for the Audi A6 Avant, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. The government's MOT record matches its advertised mileage. It is for sale at cinch in Bolton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £326 (1%) under the AskCar estimate of £20,400.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 783 priced Audi A6 Avant adverts across different ages and specifications, as of 6 November 2026.

A 2020 Audi A6 Avant with the 2.0 diesel engine is typically advertised at £18,500: the median of the 31 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2020 Audi A6 Avant advertised today.

Price history

AskCar first saw this advert on 6 November 2026 at £20,074. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 21 June 2027.

It has had 4 MOTs. The latest, on 18 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 55,738 miles, which matches the advertised 59,856 miles.

Advertised mileage is about 13,600 miles lower than the median mileage of a 2020 Audi A6 Avant on AskCar.

Similar cars

14 other 2020 Audi A6 Avant S Line 2.0 diesel automatic estates are for sale at UK dealers, from £14,990 to £23,000, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A6 Avant S Line, 2.0 diesel estate, black. Mileage: 59,422 miles. Price: £19,985, £89 less than this car. Dealer: Listers Birmingham Audi in Birmingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-c81a88f062aa
• 2020 Audi A6 Avant S Line, 2.0 diesel estate, silver. Mileage: 61,653 miles. Price: £19,995, £79 less than this car. Dealer: Forth Carz in Falkirk. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-dce5915d33a2
• 2020 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 54,469 miles. Price: £23,000, £2,926 more than this car. Dealer: Sytner Group Audi Reading in Reading. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-1866fd06d900

• The nearest: 2020 Audi A6 Avant S Line, 2.0 diesel estate, grey, 2 miles from this car. Mileage: 71,629 miles. Price: £18,995, £1,079 less than this car. Dealer: Wallace Car Sales in Bolton. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-1c2e90bf10d5